const mysql = require("mysql")

var con = mysql.createConnection({
    host: '192.168.16.144',
    port: 3306,
    user: 'root',
    password: 'ddd',
    database: 'mydatabase'
})
var userName = process.argv[2];

var deleteSql = "delete from users where userName=?"

con.query(deleteSql, [userName], (err, result)=>{
    if(err){
        console.log(err)
    }else{
        console.log(result)
    }
})